Abstract
A practical and feasible approach is demonstrated to dramatically enhance thermal conductivity of the diamond particle reinforced aluminum matrix composites by means of optimized squeeze casting for fabricating metal–matrix composites with good adhesive interface as well as minimum thermal boundary resistance. By controlling the processing route, the architecture of diamond–aluminum interface was tuned, and therefore the thermal conductivity was amazingly found to be enhanced by 89% (from 321 to 606W/(m·K)), which was the highest value reported in the scientific literature to date for diamond/aluminum composites using squeeze-casting method. Meanwhile, the bending strength was increased by 124% (from 98 to 220MPa). This study offers an easily scalable and low-cost route to construct a wide range of particle reinforced metal matrix composites with significant enhancement of thermal performance.
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